The Rapaport Diamond Report constitutes the price list of cut diamonds. In , it was quoted at 17, USD per carat, therefore x 17, = 18, RAPAPORT DIAMOND PRICE ANALYSIS. carat. 19 . 20, -. Carats 's. . As a result, they've shifted to financing based on. Published on October 7, | Last updated on September 12, By Vincent Chan The Rapaport price list takes into account 3 out of the 4 C's namely.